Limites na utilização de um modelo de balanço hídrico decendial em função da capacidade de água disponível no solo - DOI: 10.4025/actasciagron.v30i2.1721

Jorge Luiz Moretti de Souza Filho; Siguifrid Gomes

doi:10.4025/actasciagron.v30i2.1721

Limitations in the use of a ten-day water balance model, based on available water capacity in the soil - DOI: 10.4025/actasciagron.v30i2.1721

Authors

Jorge Luiz Moretti de Souza Filho UFPR Author
Siguifrid Gomes UFPR Author

DOI:

https://doi.org/10.4025/actasciagron.v30i2.1721

Keywords:

simulation, AWC, available water, irrigation, agricultural irrigation

Abstract

The objective of this work was to evaluate the limitations of a ten-day climatic water balance model to simulate irrigation in four different Paraná State regions. Sixty-eight water balance scenarios were tested to allow the relationship among crop evapotranspiration (Etc), probable precipitation at 75% level (P75%), soil available water capacity (AWC) and annual water deficiency (DEF). The results showed that: the model estimates its components better for greater values of available water (AW) in the soil; the ideal AWC value to process the irrigation analyses based on variations of ETo, Kc and Etc should be established in the model itself. However, if the condition "larger ten-day ETo ≤ AW" of the period is valid, the water balance produces consistent results for 10 days periodicity

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Author Biography

Jorge Luiz Moretti de Souza Filho, UFPR

Possui graduação em Engenharia Agrícola pela Universidade Federal de Lavras (1989), mestrado em Irrigação e Drenagem pela Universidade de São Paulo (1992) e doutorado em Irrigação e Drenagem pela Universidade de São Paulo (2001). Atualmente é professor adjunto nível IV da Universidade Federal do Paraná, consultor das revistas científicas Scientia Agraria (UFPR) e Acta Scientiarum (Maringá). Tem experiência na área de Engenharia Agrícola, com ênfase em Engenharia de Ãgua e Solo, atuando principalmente nos seguintes temas: planejamento e desenvolvimento de modelos matemáticos voltados ao desenvolvimento sustentável do meio rural e urbano, principalmente uso racional da água e energia elétrica para irrigação Currículo Lattes

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Published

2008-04-03

Issue

Vol. 30 No. 2 (2008)

Section

Agricultural Engineering

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I Declare that current article is original and has not been submitted for publication, in part or in whole, to any other national or international journal.

The copyrights belong exclusively to the authors. Published content is licensed under Creative Commons Attribution 4.0 (CC BY 4.0) guidelines, which allows sharing (copy and distribution of the material in any medium or format) and adaptation (remix, transform, and build upon the material) for any purpose, even commercially, under the terms of attribution.

How to Cite

Souza Filho, J. L. M. de, & Gomes, S. (2008). Limitations in the use of a ten-day water balance model, based on available water capacity in the soil - DOI: 10.4025/actasciagron.v30i2.1721. Acta Scientiarum. Agronomy, 30(2), 153-163. https://doi.org/10.4025/actasciagron.v30i2.1721